just in the last few days i noticed something strange. When i am driving the lights in and outside of my car flash, the radio stops and then comes back on, the airconditioning stops and comes back on as well as the navigation screen resets to the lexus sign that appeares during start up. I checked the battery terminals to see if they were loose and they weren't.
Can anyone please let me know what might be wrong with my car in this situation.

Gs4BkNy

 

And your 2000 GS 400 has how many miles on the battery?